<?php

$http = new swoole_http_server("127.0.0.1", 9501);
$http->on('start', function ($server) {

    echo "Swoole http server is started at http://127.0.0.1:9501\n";

});

$http->on("request", function ($request, $response) {

    $response->header('Content-Type', 'text/plain');
    $response->end("Hello World\n");

});